按键操作

<input class="form-control" ng-model="$ctrl.data.keyword" placeholder="please input site.."
style="border-right: 0;"
ng-change="$ctrl.searchSite()" ng-model-options="{debounce: 500}"/>

$scope.keySearch = function (e, keyword) {
var keycode = window.event ? e.keyCode : e.which;
if (keycode == 13) {
$scope.search(keyword);
}
};